Thread: Chain Rub
View Single Post
Old 12-27-12 | 07:55 PM
  #3  
HillRider
Senior Member
 
Joined: Aug 2005
Posts: 33,657
Likes: 1,119
From: Pittsburgh, PA

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Chain rub on the inside face of the big chainring when in the little chainring and the smallest one or two cogs is quite common. It's particularly an issue if the chainrings are a 53/39 combination. It can be reduced by fitting a longer bottom bracket axle but that can have it's downside and disrupt the chainline.

Cure: Avoid the smallest cogs in the small chainring. It called cross chaining and is hard on the chain as well as noisy.
HillRider is offline  
Reply